AI-Based W-Band Suspicious Object Detection System for Moving Persons: Two-Stage Walkthrough Configuration and Recognition Optimization

Table 1

Total system configuration summary.

Screening	Objective	Method
1st screening suspect recognition system	Detect persons with metal objects or suspicious movement for wider area	Detect metal object by using a mmW (78GHz) radar; Detect suspicious movement by analyzing camera images
2nd screening suspicious object recognition system	Classify and detect concealed weapon while walking in a pathway	Capture active and passive mmW (77GHz) images by using a hybrid imager; Recognize concealed weapon using CNN